PHOTO-OXIDATION OF FORMIC ACID BY OXYGEN IN THE PRESENCE OF TITANIUM DIOXIDE AND DISSOLVED COPPER IONS: OXYGEN TRANSFER AND REACTION KINETICS
- 1 June 1990
- journal article
- research article
- Published by Taylor & Francis in Chemical Engineering Communications
- Vol. 93 (1) , 167-179
- https://doi.org/10.1080/00986449008911444
Abstract
Photocatalytic activity of TiO2 in the oxidation by oxygen of formic acid is considerably enhanced by the presence of dissolved copper ions. The role of oxygen transfer between the gas phase and the slurry is examined. The kinetic results obtained in the absence of mass transfer limitations lead to a mechanism based upon a redox cycle between Cu2+ and Cu+ species adsorbed on the surface of TiO2.Keywords
This publication has 21 references indexed in Scilit:
- Effect of consecutive and alternative oxidation and reduction treatments on the interactions between titania (anatase and rutile) and copperJournal of Catalysis, 1988
- Physical characteristics of photocatalysts affecting the performance of a process in a continuous photoreactorSolar Energy Materials, 1988
- Photocatalysis by Inorganic Components of Natural Water SystemsPublished by American Chemical Society (ACS) ,1987
- Metal-support and metal oxide-support interactions in Cu/TiO2Reaction Kinetics and Catalysis Letters, 1986
- Anomalous metal-support interactions in Cu/TiO2 catalystsJournal of Catalysis, 1984
- Photocurrent enhancement via trapping of photogenerated electrons of titanium dioxide particlesThe Journal of Physical Chemistry, 1982
- Heterogeneous Photocatalytic Reactions on Semiconductor Materials. III. Effect of pH and Cu2+ Ions on the Photo-Fenton Type ReactionBulletin of the Chemical Society of Japan, 1982
- Heterogeneous photocatalytic and photosynthetic deposition of copper on Titanium dioxide and tungsten(VI) oxide powdersThe Journal of Physical Chemistry, 1979
- Photoredox chemistry of bis(2,9-dimethyl-1,10-phenanthroline)copper(II) complexes in aqueous and methanolic mediaThe Journal of Physical Chemistry, 1972
- Gas-Liquid ReactionsJournal of the Electrochemical Society, 1970